Revelers mark the end of the San Fermin fiestas in Pamplona

Revelers gather to mark the end of the San Fermin fiestas, in Pamplona northern Spain, Saturday, July 14. The festival of San Fermin will end at midnight Saturday, with revelers singing ''Pobre de Mi," a song which can be translated as "woe is me."

Susana Vera / Reuters

"Gigantes" (Giants) dance during a farewell ceremony on the last day of San Fermin festival's "Comparsa de gigantes y cabezudos" (Parade of the giants and the big heads) in Pamplona July 14. Enormous puppets accompanied by brass bands parade daily through the city during the nine-day-long festival made popular by U.S. writer Ernest Hemingway.

Pedro Armestrepedro / AFP via Getty Images

Spanish matador Daniel Luque performs a pass with a cape next to a Torrehandilla bull during the last corrida of the San Fermin Festival, on July 14, in the Northern Spanish city of Pamplona. The festival is a symbol of Spanish culture that attracts thousands of tourists to watch the bull runs despite heavy condemnation from animal rights groups.

Eloy Alonso / Reuters

Revellers sleep it off at the Plaza Consistorial on the final day of the San Fermin festival in Pamplona July 14. Hundreds of thousands of tourists come from around the world every year to the San Fermin festival, depicted in Ernest Hemingway's 1926 novel "The Sun Also Rises", to take part in activities including the running of the bulls, an early morning half-mile dash from the corral to the bullring alongside six bulls destined to die in the afternoon's corrida. Sixteen people have died in the bull run since 1925. This is followed by processions of giant traditional figures, concerts, firebulls,
fireworks, and large doses of eating, drinking, dancing and late nights.